Coronary Artery Disease DKcrush Bifurcation Interventional Therapy Technology And Classic Crush Technology Curative Effect Contras

Objective：To test the DK will Crush technical superiority. methods：this studybelong to the methods of randomized clinical trials research, in strict accordance with theinclusion criteria and exclusion standard, since June2009, selected from June2010,hospitalized patients with coronary angiography confirmed by for patients with coronaryartery disease, expansive bifurcation and bifurcation vessel diameter>20mm) of patients,nonrandomized group, A group of49patients received DKCrush technical treatment,group B45patients underwent classic Crush technology treatment, compared with twogroups of patients preoperative and postoperative nosocomial intraoperative and8monthsof the parameters. Results：in the DK Crush group, compared with those in the classica lCrush group, were characterized by longer lesion length inside,branch (13.8±3.6mmvs7.9±3.2mm, P<0.05), shorter procedural time (40±10m in vs60±12m in, P <0.05), higher success rate of FKBI (100%vs75%, P<0.01) and lower volume ofcontrast,consumm ed (92±35mm vs156±43mm, P<0.05) There was a tendency thatpatients in the DK Crush,group had larger bifurication angle between them a invessel andside branch [(58±19) vs (46±16)] and,longer lesion length in the main vessel (23.3±7.9mm vs201±7.2mm) although without significant,differences (P>0.05, respectivelly) Subacute stent throm bos is were detected in2patients with failure of,FKB I in theclassical C rush group (2.3%) Patients in the c lassica l,C rush group, com pa red w iththo se inKthe DK C rush group, were cha racte rized by smallerm in imum lum en d iameter (MLD) at side branch ostium(2.99±0.28mm vs2.65±0.30mm, P<0.01) and higherdegree o f res idua l stenosis at ostia l side branch(8.20±5.1%vs18.1%±11.2%, P<0.05),Notably, there were five patients whose residual diam eterrestenos is at ostia l sidebranch was>30%, which was defined as failure of the operation.Conclusion：Crush technology existing technical defects is causing the main cause of poor prognosis ofimproved significantly improve DK will Crush technology to kiss expansion rate, reducepostoperative complications.